Consider the following statements:
(i) Cross-section of a member of truss experiences uniform stress.
(ii) Cross-section of a beam experiences minimum stress.
(iii) Cross-section of a beam experiences linearly varying stress.
(iv) Cross-sections of truss members experience only compressive stress.
Which of the above statements are correct?
(a) 1 and 2 (b) 1 and 3
(c) 1 and 4 (d) 3 and 4